Compressor oil baffle, air conditioner compressor and air conditioner
By installing a porous oil baffle plate on the top of the rotor core of the air conditioner compressor, the problems of insufficient oil separation capacity and high noise of the existing oil baffle structure are solved, achieving efficient separation of refrigerant oil and reducing noise, thereby improving the performance of the air conditioner compressor and the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI AOSONG REFRIGERATION EQUIPMENT CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-14
AI Technical Summary
The existing oil-blocking structure of air conditioner compressors has a weak ability to separate refrigerant oil, resulting in serious refrigerant oil loss and generating a lot of noise during operation, which affects the user experience.
Design a compressor oil baffle, including a plate body connected to the top of the rotor core of the air conditioning compressor. The plate body has a porous structure inside, with pores extending from the bottom wall and outer wall to the inside. The top wall is covered with a closed and dense layer to achieve the separation of refrigeration oil and gaseous refrigerant. The refrigeration oil flows back to the oil sump under the action of centrifugal force, and the gaseous refrigerant enters the refrigerant pipeline.
It achieves efficient separation and recovery of refrigeration oil, reduces noise, and improves the oil-gas separation effect and quiet operation of the air conditioning compressor.
Smart Images
Figure CN224496761U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air conditioning technology, specifically to a compressor oil baffle, an air conditioning compressor, and an air conditioner. Background Technology
[0002] During operation, the refrigerant oil inside the air conditioner compressor can easily mix with the gaseous refrigerant and flow out. This causes the refrigerant oil inside the air conditioner compressor to be lost, and the refrigerant oil entering the refrigerant pipeline can have an adverse effect on the air conditioner's performance.
[0003] To address this issue, current solutions primarily involve installing a stamped metal oil baffle on top of the rotor or a plastic oil baffle on top of the stator to prevent refrigerant oil from flowing out of the air conditioning compressor. However, these oil baffles and baffles have relatively weak oil separation capabilities, resulting in significant oil loss. Furthermore, they generate considerable noise during operation, negatively impacting the user experience. Utility Model Content
[0004] The problem solved by this invention is that the existing oil-blocking structure of air conditioning compressors has a weak ability to separate refrigerant oil and generates a lot of noise.
[0005] To solve the above problems, this utility model provides a compressor oil baffle plate, which has the characteristics of better oil-gas separation effect and less noise.
[0006] The embodiments of this utility model provide a technical solution:
[0007] A compressor oil baffle includes a plate body configured to be connected to the top of the rotor core of an air conditioning compressor so as to rotate synchronously with the rotor core.
[0008] The interior of the plate is a porous structure that is interconnected and tightly arranged, with pores extending from the bottom wall and outer wall to the interior. The top wall of the plate is covered with a closed and dense layer.
[0009] The compressor oil baffle provided in this embodiment is connected to the top of the rotor core of the air conditioner compressor in practical applications. During the operation of the air conditioner compressor, the oil-gas mixture composed of refrigerant oil and gaseous refrigerant flows upward through the rotor core and reaches the bottom wall of the baffle. The gaseous refrigerant in the oil-gas mixture can be smoothly discharged through the porous structure of the baffle, pass over the baffle to the top space of the air conditioner compressor, and finally enter the refrigerant pipeline. The refrigerant oil is captured by the pores of the baffle, gradually condenses into oil droplets, and flows under the centrifugal force of the baffle rotating with the rotor core. Because the closed and dense layer covering the top wall of the baffle can prevent the refrigerant oil from flowing out from the top of the baffle, the condensed refrigerant oil can only flow out from the outer wall of the baffle under centrifugal force, and after laterally impacting the inner surface of the air conditioner compressor housing, it flows back to the oil sump under the action of gravity.
[0010] As can be seen, the compressor oil baffle provided in this embodiment, with its porous structure, can more effectively capture refrigerant oil in the oil-gas mixture, while allowing gaseous refrigerant to pass through smoothly. Furthermore, the porous structure can absorb noise generated by airflow impact. Therefore, the compressor oil baffle provided in this embodiment features better oil-gas separation and lower noise levels.
[0011] In an optional embodiment, the bottom wall of the plate is provided with a connecting portion, and the plate is connected to the rotor core through the connecting portion.
[0012] The plate is connected to the rotor core through a connecting part protruding from the bottom wall, which can form a gap with the rotor core to achieve a wider range of contact with the oil-gas mixture.
[0013] In an optional embodiment, the apertures in each region of the plate are the same.
[0014] The holes in all areas of the plate have the same diameter, which reduces production costs.
[0015] In an optional embodiment, a crankshaft hole is provided through the center of the plate along its thickness direction, and the wall of the crankshaft hole is covered with the closed dense layer.
[0016] The walls of the crankshaft bore are covered by a dense, sealed layer to prevent the separated refrigerant oil from flowing into the crankshaft bore from inside the plate, thus avoiding the refrigerant oil from mixing with the gaseous refrigerant again after passing through the crankshaft bore and the plate.
[0017] In an optional embodiment, the pore size of the porous structure gradually decreases from the region of the bottom wall of the plate near the crankshaft hole to the region of the outer side wall of the plate near its top wall.
[0018] By gradually reducing the aperture along the flow path of the refrigeration oil, the flow rate of the refrigeration oil can be gradually increased, thereby improving the separation efficiency of the refrigeration oil.
[0019] In an optional embodiment, the plate is circular.
[0020] The circular shape of the plate allows for uniform oil-gas mixing and contact with all areas of the bottom wall, resulting in better oil-gas separation.
[0021] In an optional embodiment, the plate is a foamed plastic plate, a foamed ceramic plate, or a foamed metal plate.
[0022] An embodiment of this utility model also provides an air conditioning compressor, including a rotor core and the aforementioned compressor oil baffle. The compressor oil baffle includes a plate body, which is a three-dimensionally interconnected porous structure with pores extending from the inside to the bottom wall and the outer wall. The top wall of the plate body is covered with a closed and dense layer. The plate body is connected to the top of the rotor core, and the bottom wall of the plate body is disposed opposite to the rotor core.
[0023] Benefiting from the beneficial effect of the compressor oil baffle, the air conditioning compressor provided in this embodiment of the utility model also has the characteristics of better oil-gas separation effect and less noise.
[0024] In an optional embodiment, the air conditioning compressor further includes a secondary balance block, an upper magnet end plate, a lower magnet end plate, and a main balance block. The upper magnet end plate is disposed at the top of the rotor core, the lower magnet end plate is disposed at the bottom of the rotor core, the secondary balance block is disposed between the upper magnet end plate and the plate body, and the main balance block is disposed on the lower magnet end plate.
[0025] An embodiment of this utility model also provides an air conditioner, including the aforementioned air conditioning compressor. The air conditioning compressor includes a rotor core and the aforementioned compressor oil baffle. The compressor oil baffle includes a plate body, which is a three-dimensionally interconnected porous structure with pores extending from the interior to the bottom wall and the outer wall. The top wall of the plate body is covered with a closed and dense layer. The plate body is connected to the top of the rotor core, and the bottom wall of the plate body is disposed opposite to the rotor core.
[0026] Benefiting from the beneficial effects of the air conditioning compressor, the air conditioner provided in this embodiment of the utility model has the characteristics of better heat exchange performance and better user experience. Attached Figure Description
[0027] Figure 1 A cross-sectional view of an air conditioning compressor provided for an embodiment of this utility model;
[0028] Figure 2 This is a schematic diagram of the rotor assembly of an air conditioner compressor.
[0029] Figure 3 This is a cross-sectional view of the compressor oil baffle.
[0030] Explanation of reference numerals in the attached figures:
[0031] 100-Compressor oil baffle; 110-Plate body; 111-Bottom wall; 112-Outer wall; 113-Sealed dense layer; 114-Connecting part; 115-Crankshaft hole; 200-Air conditioning compressor; 210-Rotor core; 220-Secondary balance block; 230-Upper magnet end plate; 240-Lower magnet end plate; 250-Main balance block; 260-Stator; 270-Crankshaft; 280-Compression assembly; 290-Housing shell. Detailed Implementation
[0032] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0033] Please see Figure 1 , Figure 1 The image shown is a cross-sectional view of the air conditioning compressor 200 provided in this embodiment.
[0034] The air conditioning compressor 200 provided in this embodiment includes a rotor core 210, a compressor oil baffle 100, a stator 260, a crankshaft 270, a compression assembly 280, and a housing 290. The rotor core 210, compressor oil baffle 100, stator 260, crankshaft 270, and compression assembly 280 are all disposed within the housing 290. The rotor core 210 is coaxially disposed inside the stator 260. The compression assembly 280 is located below the rotor core 210. One end of the crankshaft 270 is connected to the compression assembly 280, and the other end extends upward to connect with the rotor core 210. The compressor oil baffle 100 is connected to the top of the rotor core 210.
[0035] In practical applications, the stator 260 generates a changing magnetic field to drive the rotor to rotate. After the rotor rotates, it drives the crankshaft 270 to rotate synchronously, thereby driving the compression assembly 280 to operate to compress the refrigerant. The compressed refrigerant flows upward in a gaseous state.
[0036] During the operation of the air conditioning compressor 200, the refrigerant oil stored inside the housing 290 is gradually mixed with the gaseous refrigerant due to the agitation caused by the high-speed rotation of the rotor and the high-speed flow of the high-temperature, high-pressure gaseous refrigerant, forming an oil-gas mixture. This oil-gas mixture flows with the airflow through the gap between the rotor core 210 and the stator 260 and through the pre-set through holes inside the rotor core 210, thus flowing into the upper space of the housing 290.
[0037] After the oil-gas mixture passes through the rotor core 210, it flows through the compressor oil baffle 100. Under the action of the compressor oil baffle 100, the refrigerant oil and gaseous refrigerant are separated. The separated refrigerant oil gradually flows back to the oil sump at the bottom of the housing 290 under the action of gravity, thereby maintaining the normal oil level of the internal lubrication system of the air conditioning compressor 200 and ensuring normal lubrication and cooling effects. The separated gaseous refrigerant continues to flow upward, enters the top space of the housing 290, and finally enters the refrigerant pipeline of the air conditioner to enter the next stage of the heat exchange cycle.
[0038] Please refer to the above. Figure 2 , Figure 2 The diagram shows the structure of the rotor assembly of the air conditioning compressor 200.
[0039] The air conditioning compressor 200 also includes a secondary balance block 220, an upper magnet end plate 230, a lower magnet end plate 240, and a main balance block 250. The upper magnet end plate 230 is located at the top of the rotor core 210, the lower magnet end plate 240 is located at the bottom of the rotor core 210, the secondary balance block 220 is located between the upper magnet end plate 230 and the compressor oil baffle 100, and the main balance block 250 is located on the lower magnet end plate 240. The rotor core 210, the compressor oil baffle 100, the secondary balance block 220, the upper magnet end plate 230, the lower magnet end plate 240, and the main balance block 250 together form a rotor assembly.
[0040] The upper magnet end plate 230 is disposed on the top end face of the rotor core 210. Its main function is to fix and press the magnets installed on the outer periphery of the rotor core 210, preventing them from shifting or falling off due to centrifugal force during high-speed rotation. Similarly, the lower magnet end plate 240 is installed on the bottom end face of the rotor core 210, forming a symmetrical structure with the upper magnet end plate 230, together achieving axial constraint on the magnets and ensuring the stability of the rotor core 210 structure. The auxiliary balance block 220 works in conjunction with the main balance block 250 to improve the balance performance of the rotor assembly during rotation, thereby enhancing the smoothness and quietness of the air conditioning compressor 200 operation.
[0041] Please refer to the following: Figure 3 , Figure 3 The image shown is a cross-sectional view of the compressor oil baffle 100.
[0042] The compressor oil baffle 100 provided in this embodiment includes a plate body 110, which is connected to the top of the rotor core 210 of the air conditioning compressor 200 and rotates synchronously with the rotor core 210. The interior of the plate body 110 is a porous structure with interconnected and tightly arranged pores, the pores of which extend from the bottom wall 111 and the outer wall 112 to the interior. The bottom wall 111 of the plate body 110 is disposed opposite to the rotor core 210, and the top wall of the plate body 110 is covered with a closed and dense layer 113.
[0043] It is understood that the plate 110 is a three-dimensional interconnected porous structure, that is, the plate 110 is an open structure with a connected pore network. Since its pores extend from the inside to the bottom wall 111 and the outer wall 112, in practical applications, the oil-gas mixture can enter and exit the plate 110 through the bottom wall 111 and the outer wall 112.
[0044] After the oil-gas mixture passes through the rotor core 210, it first reaches the vicinity of the bottom wall 111 of the plate 110 and flows into the pore network of the plate 110 through the pores on the bottom wall 111. Subsequently, due to its low density and high fluidity, the gaseous refrigerant in the oil-gas mixture can pass relatively smoothly through the interconnected channels inside the plate 110, gradually migrate towards the periphery of the plate 110, and finally escape from the outer side wall 112 of the plate 110, reaching the top space of the casing 290, and finally entering the refrigerant pipeline.
[0045] The refrigeration oil in the oil-gas mixture is viscous. When it passes through the pores 111 on the bottom wall of the plate 110, it is captured by the pores and adheres to the pore wall. As the oil-gas mixture continues to flow in, the refrigeration oil gradually condenses into oil droplets and flows under the centrifugal force of the plate 110 rotating with the rotor core 210.
[0046] Because the closed and dense layer 113 covering the top wall of the plate 110 can prevent the refrigeration oil from flowing out from the top wall of the plate 110, the condensed refrigeration oil can only flow out from the outer wall 112 of the plate 110 under centrifugal force. After impacting the inner surface of the housing 290 of the air conditioning compressor 200 laterally, it flows back to the oil pool under the action of gravity, thus completing the separation and recycling of the refrigeration oil.
[0047] As can be seen, the compressor oil baffle 100 provided in this embodiment, with its porous plate body 110, does not affect the flow of gaseous refrigerant and can more effectively capture refrigeration oil. Under centrifugal force, the refrigeration oil in the oil-gas mixture condenses and is laterally thrown out of the plate body 110 to the inner surface of the housing 290, achieving more effective separation of refrigeration oil and gaseous refrigerant. Furthermore, the porous structure on the bottom wall 111 of the plate body 110 can absorb the noise generated by the impact of the oil-gas mixture, achieving a better noise reduction effect.
[0048] In this embodiment, the bottom wall 111 of the plate 110 is provided with a connecting part 114. The plate 110 is connected to the rotor core 210 through the connecting part 114, so that a gap is formed between the top of the plate 110 and the rotor core 210, so that the bottom wall 111 of the plate 110 has a larger range of contact with the oil-gas mixture, thereby obtaining a better oil-gas separation effect.
[0049] Preferably, the plate 110 is an open-cell aluminum foam plate, and the closed-cell dense layer 113 covering the top wall of the plate 110 is formed by processing the plate 110 using a closed-cell process. In another embodiment, depending on the actual application conditions, the plate 110 may also be selected from foamed plastic plates, foamed ceramic plates, or other foamed metal plates.
[0050] In this embodiment, a crankshaft hole 115 is provided through the center of the plate 110 along its thickness direction, and the hole wall of the crankshaft hole 115 is covered with a closed and dense layer 113.
[0051] In fact, in this embodiment, the plate 110 is circular, the crankshaft hole 115 is coaxially arranged with the plate 110, and the crankshaft 270 passes through the rotor core 210 and the crankshaft hole 115 sequentially from the bottom of the rotor core 210 upwards.
[0052] Similarly, the closed and dense layer 113 covering the wall of the crankshaft bore 115 is formed by the plate 110 through a closed-cell process. Because the wall of the crankshaft bore 115 is covered with the closed and dense layer 113, after the oil-gas mixture enters the plate 110 from the bottom wall 111, it is blocked by the closed and dense layer 113. The refrigerant oil cannot flow into the crankshaft bore 115 from the wall of the crankshaft bore 115, thus preventing the refrigerant oil from remixing with the gaseous refrigerant after passing through the plate 110 via the crankshaft bore 115, further improving the separation effect of the refrigerant oil.
[0053] To facilitate processing and reduce production costs, the apertures in all regions of the plate 110 are the same in this embodiment. In other embodiments, to improve oil-gas separation efficiency, the apertures in different regions of the plate 110 can be designed differently.
[0054] For example, in another embodiment, the pore size of the porous structure gradually decreases from the region of the bottom wall 111 of the plate 110 near the crankshaft hole 115 to the region of the outer side wall 112 of the plate 110 near its top wall. Under the centrifugal force generated by the rotation of the plate 110 with the rotor core 210, the flow direction of the condensed refrigerant oil is as follows... Figure 3 As indicated by arrow A, the flow of refrigeration oil originates from the area near the crankshaft hole 115 on the bottom wall 111 of plate 110 to the area near the top wall on the outer side wall 112 of plate 110. Since the aperture of plate 110 gradually decreases in this direction, it accelerates the flow of refrigeration oil, thereby increasing the flow rate of refrigeration oil and improving the separation efficiency of refrigeration oil.
[0055] In summary, the compressor oil baffle 100 provided in this embodiment has the characteristics of better oil-gas separation effect, higher efficiency, and lower noise generation. Benefiting from the beneficial effects of the compressor oil baffle 100, the air conditioning compressor 200 provided in this embodiment also has the characteristics of better oil-gas separation effect and lower noise generation.
[0056] In addition, this embodiment also provides an air conditioner equipped with the aforementioned air conditioning compressor 200. Benefiting from the beneficial effects of the air conditioning compressor 200, the air conditioner provided in this embodiment has the characteristics of better heat exchange performance and better user experience.
[0057] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.
Claims
1. A compressor oil baffle, characterized in that, Includes a plate (110) configured to be connected to the top of the rotor core (210) of the air conditioning compressor (200) so as to rotate synchronously with the rotor core (210); The interior of the plate (110) is a porous structure that is interconnected and tightly arranged, with its pores extending from the bottom wall (111) and the outer wall (112) to the interior. The top wall of the plate (110) is covered with a closed and dense layer (113).
2. The compressor oil baffle according to claim 1, characterized in that, The bottom wall (111) of the plate (110) is provided with a connecting part (114), and the plate (110) is connected to the rotor core (210) through the connecting part (114).
3. The compressor oil baffle according to claim 1, characterized in that, The apertures in each region of the plate (110) are the same.
4. The compressor oil baffle according to claim 1, characterized in that, A crankshaft hole (115) is provided through the center of the plate (110) along its thickness direction, and the wall of the crankshaft hole (115) is covered by the closed dense layer (113).
5. The compressor oil baffle according to claim 4, characterized in that, From the area of the bottom wall (111) of the plate (110) near the crankshaft hole (115) to the area of the outer side wall (112) of the plate (110) near its top wall, the pore size of the porous structure gradually decreases.
6. The compressor oil baffle according to claim 1, characterized in that, The plate (110) is circular.
7. The compressor oil baffle according to claim 1, characterized in that, The plate (110) is a foamed plastic plate, a foamed ceramic plate, or a foamed metal plate.
8. An air conditioning compressor, characterized in that, Includes a rotor core (210) and a compressor oil baffle (100) as described in any one of claims 1-7, wherein the plate body (110) is connected to the top of the rotor core (210), and the bottom wall (111) of the plate body (110) is disposed opposite to the rotor core (210).
9. The air conditioning compressor according to claim 8, characterized in that, The air conditioning compressor (200) also includes a secondary balance block (220), an upper magnet end plate (230), a lower magnet end plate (240), and a main balance block (250). The upper magnet end plate (230) is disposed on the top of the rotor core (210), the lower magnet end plate (240) is disposed on the bottom of the rotor core (210), the secondary balance block (220) is disposed between the upper magnet end plate (230) and the plate body (110), and the main balance block (250) is disposed on the lower magnet end plate (240).
10. An air conditioner, characterized in that, Includes the air conditioning compressor (200) as described in any one of claims 8-9.